Andy Weir discusses his science-fueled novel “Project Hail Mary,” which has been adapted into a film that opens in theaters ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

Breaking space news, the latest updates on rocket launches, skywatching events and more! You are now subscribed Your newsletter sign-up was successful Want to add more newsletters? Delivered daily ...

Syfy's highly-rated sci-fi drama was cancelled after four seasons but it's still popular on streaming services. Get all the ...

Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.